Scalper /(skălp"ẽr)/

Scalper

n.
  1. One who, or that which, scalps.
  2. Same as Scalping iron, under Scalping. (Surg.)
  3. A broker who, dealing on his own account, tries to get a small and quick profit from slight fluctuations of the market. [Cant]
  4. A person who buys and sells the unused parts of railroad tickets. [Cant]
  5. A person who buys tickets for entertainment or sports events and sells them at a profit, often at a much higher price. Also, ticket scalper. [Cant]